P

Inventor

AKESAKA TOSHIO

JP36 patents
⚠️ This page may combine multiple inventors who share the name “AKESAKA TOSHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ISEKI KAIHATSU KOKI

32 patents
US5393172AFeb 28, 1995

Shield tunneling machine

ISEKI KAIHATSU KOKI29 citations92
US5296915AMar 22, 1994

Method and apparatus for controlling direction of excavating machine

ISEKI KAIHATSU KOKI31 citations92
US4886396ADec 12, 1989

Existing pipeline renewing method and apparatus therefor

ISEKI KAIHATSU KOKI26 citations92
US4692062ASep 8, 1987

Shield type tunneling machine

ISEKI KAIHATSU KOKI26 citations92
US4406498ASep 27, 1983

Shield tunneling method and machine therefor

ISEKI KAIHATSU KOKI30 citations92
US4311344AJan 19, 1982

Shield-type tunneling machine with toggle controlled bit plates in cutter disc

ISEKI KAIHATSU KOKI32 citations92
US4662606AMay 5, 1987

Pipe propelling device

ISEKI KAIHATSU KOKI16 citations82
US4624605ANov 25, 1986

Shield tunneling apparatus

ISEKI KAIHATSU KOKI22 citations82
US5102201AApr 7, 1992

Shield tunnelling machine

ISEKI KAIHATSU KOKI21 citations80
US4311411AJan 19, 1982

Pipe jacking apparatus

ISEKI KAIHATSU KOKI20 citations75
US5797202AAug 25, 1998

Vertical hole excavating machine

ISEKI KAIHATSU KOKI10 citations74
US5392897AFeb 28, 1995

Conveyor

ISEKI KAIHATSU KOKI14 citations74
US5193938AMar 16, 1993

Method and apparatus for laying pipe

ISEKI KAIHATSU KOKI15 citations74
US5123708AJun 23, 1992

Shield tunnelling machine

ISEKI KAIHATSU KOKI18 citations74
US5078545AJan 7, 1992

Method for boring hole in the ground and apparatus therefor

ISEKI KAIHATSU KOKI17 citations74
US5061120AOct 29, 1991

Direction correcting device for shield tunnelling machine

ISEKI KAIHATSU KOKI19 citations74
US5013189AMay 7, 1991

Intermediate pipe-jacking apparatus

ISEKI KAIHATSU KOKI9 citations74
US4964580AOct 23, 1990

Crushing machine

ISEKI KAIHATSU KOKI15 citations74
US4915543AApr 10, 1990

Existing pipeline renewing method and apparatus therefor

ISEKI KAIHATSU KOKI19 citations74
US4898498AFeb 6, 1990

Thrust transmitting device

ISEKI KAIHATSU KOKI10 citations74
US4886394ADec 12, 1989

Shield tunneling machine

ISEKI KAIHATSU KOKI10 citations74
US4874268AOct 17, 1989

Method and apparatus for building pipeline and shield tunnelling machine

ISEKI KAIHATSU KOKI12 citations74
US4869619ASep 26, 1989

Method for excavating hole and apparatus therefor

ISEKI KAIHATSU KOKI15 citations74
US4830539AMay 16, 1989

Pipe propelling apparatus

ISEKI KAIHATSU KOKI13 citations74
US4691787ASep 8, 1987

Earth auger

ISEKI KAIHATSU KOKI14 citations74
US5054976AOct 8, 1991

Inside processing apparatus

ISEKI KAIHATSU KOKI12 citations70
US5538362AJul 23, 1996

Shield excavator

ISEKI KAIHATSU KOKI7 citations68
US4630869ADec 23, 1986

Shield tunneling machine

ISEKI KAIHATSU KOKI18 citations67
US4815695AMar 28, 1989

Pipe propelling device

ISEKI KAIHATSU KOKI3 citations63
US5370479ADec 6, 1994

Shielding apparatus

ISEKI KAIHATSU KOKI1 citations52
US5157982AOct 27, 1992

Rotary actuator

ISEKI KAIHATSU KOKI1 citations48
US5190407AMar 2, 1993

Rectangular shield excavating machine

ISEKI KAIHATSU KOKI1 citations47

TOA GROUT KOGYO CO

1 patent

ISEKI KAIHATSU KAKI KK

1 patent

KABUSHIKIKAISHA ISEKIKAIHATSU

1 patent

TOHO GAS KK

1 patent